/Engine/Plugins/VirtualProduction/CameraCalibrationCore/Source/CameraCalibrationCore/Public/LensFile.h
Returns the overscan factor based on distorted UV and image center
float ComputeOverscan ( const [FDistortionData](API\Plugins\CameraCalibrationCore\FDistortionData) & DerivedData, FVector2D PrincipalPoint ) const